Subtitles of the Movie

To the left of our Target Edit are Tracking Controls and in the tool that we want to use next is the Tracking Tool. So let's click Track Targets and we're at the very beginning of our shot. And click the Track Target Tool. So as we can see as I scrub through the shot, our target tracks to that feature pretty well and Electric Image did the tracking very quickly. OK, let's close that for a minute and let's add another target. Just click the Add Button and this time we'll edit the target size a little bit and explain how this tracking target works. And what a template is is a picture of the feature from your shot that the target is over that Animator compares from one frame to the next. The size of that region over your feature is determined by the template size. But when you see 0 in a template size here, that simply means that Animator will use the default size of 15. The Search Radius is the area outside of the template that Animator is examining from one frame to the next. So if you have a fast-moving shot and your feature is moving quickly from one position to the next, from frame to frame, then you might need a larger search radius. We'll set it to 50 and then we'll click Target Editor. Two things; you'll notice our new target, Target Number 1, has a much bigger search radius and it's added to the list of targets at the bottom. Again, I'll pick another feature. Let me just scrub through the shot again and find another feature that I think will be useful because it's in the shot for the duration of the shot. Hold down the Option Key, drag the new target over to this little lip of the bluff and we'll click the Track Button again. We'll see how it did. It tracked it very well. To make a good Matchmove, you really need to track features within your scene that appear in the background, middle ground and foreground. So you need multiple targets. So I'll open up another version of this project that already has multiple targets applied to this background. Here we are. As you can see, we have five targets within this shot, going from very far to very near the camera. If you need to adjust any one of the targets, you can solo any of the targets by pressing the Command Key and clicking on the target. Now, the only visible target is the one that you Command Clicked on. And, of course, if you feel that your target is slipping at any time during the shot, you can go in and edit it and reposition it manually and then click the Track Button again. Yes, we do. Let's turn back on all the other targets. Now all the tracking data from this Matchmove is about ready to be sent to our virtual camera within our scene. So let's close this window. The missing element to our Matchmove so far is the camera lens. Now, it's best when you've recorded your background to know what angle of view or focal length that your actual camera lens is set on. Then you would enter the lens information into the Field of View Tab here into one of these fields. If you don't know the focal length of the lens that was used to record your shot, then you're going to have to estimate what it is based on the angle that you see in your scene. So this might take some experimentation. So now that we've entered the data into our field of view, back to Matchmove and the last step is to click Matchlook, which will match the virtual camera's tilt and pan to the actual camera's move within our shot. And so we click Matchlook and yes, we want to start from the very beginning to the end. So that's 70 frames. Click OK. Now all the tracking data from the Matchmover was sent to our camera object. Let's go ahead and preview our animation and now our cones are tracked into our shot. It looks pretty good. Now, before I render this, I want to point out something important. Just because the Matchmover is using the same background image as our Rotoscope background plate, it's the same file, Electric Image doesn't necessarily know that you want to use this to render against unless that file is in the Roto Background Field and you've got Render Rotoscope Composite clicked on. We see that it is and our Matchmove looked pretty good. We can go ahead and render this and see the final animation. It looks pretty good. And see a little bit of a drift here which means my focal length is probably not exactly right. But in general, this is a pretty good Matchmove.